US3015219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cooling granular material
Assignee: Alcatel Lucent SAS
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Filing: 1959-07-22
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Granted: 1962-01-02
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Veyrie Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
APPARATUS FOR COOLING PARTICULATE MATERIAL COMPRISING A ROTATABLE DOUBLE-WALLED CYLINDER HAVING ITS AXIS MOUNTED SUBSTANTIALLY HORIZONTALLY, MEANS FOR ROTATING SAID CYLINDER ABOUT ITS AXIS, THE INNER WALL OF SAID DOUBLEWALLED CYLINDER DEFINING A CHAMBER THROUGH WHICH THE MATERIAL PASSES, HELICAL CONVEYOR BLADES WITHIN SAID CHAMBER, MEANS FOR FEEDING MATERIAL TO ONE END OF SAID CHAMBER, SAID MEANS INCLUDING A PNEUMATIC CONVEYOR DEVICE IN WHICH SAID MATERIAL IS PARTIALLY COOLED AND AN AIR SEPARATING MEANS, MEANS AT THE OTHER END OF SAID CHAMBER FOR THE WITHDRAWAL OF THE COOLED MATERIAL, THE INNER AND OUTER WALLS OF SAID DOUBLE-WALLED CYLINDER DEFINING THEREBETWEEN AN ANNULAR COOLING CHAMBER, AND MEANS FOR CIRCULATING A COOLING MEDIUM INTO AND OUT OF SAID COOLING CHAMBER, SAID LAST-MENTIONED MEANS INCLUDING PIPE MEANS MOUNTED TO ROTATE WITH SAID DOUBLE-WALLED CYLINDER, AND A STATIONARY CONNECTING BOX IN COMMUNICATION WITH SAID PIPE MEANS.
Claim 2
Dependent Claim
142 words
APPARATUS FOR COOLING PARTICULATE MATERIAL COMPRISING A ROTATABLE DOUBLE-WALLED CYLINDER HAVING ITS AXIS MOUNTED SUBSTANTIALLY HORIZONTALLY, MEANS FOR ROTATING SAID CYLINDER ABOUT ITS AXIS, THE INNER WALL OF SAID DOUBLEWALLED CYLINDER DEFINING A CHAMBER THROUGH WHICH THE MATERIAL PASSES, HELICAL CONVEYOR BLADES WITHIN SAID CHAMBER, MEANS FOR FEEDING MATERIAL TO ONE END OF SAID CHAMBER, SAID MEANS INCLUDING A PNEUMATIC CONVEYOR DEVICE IN WHICH SAID MATERIAL IS PARTIALLY COOLED AND AN AIR SEPARATING MEANS, MEANS AT THE OTHER END OF SAID CHAMBER FOR THE WITHDRAWAL OF THE COOLED MATERIAL, THE INNER AND OUTER WALLS OF SAID DOUBLE-WALLED CYLINDER DEFINING THEREBETWEEN AN ANNULAR COOLING CHAMBER, AND MEANS FOR CIRCULATING A COOLING MEDIUM INTO AND OUT OF SAID COOLING CHAMBER, SAID LAST-MENTIONED MEANS INCLUDING PIPE MEANS MOUNTED TO ROTATE WITH SAID DOUBLE-WALLED CYLINDER, AND A STATIONARY CONNECTING BOX IN COMMUNICATION WITH SAID PIPE MEANS.
References Cited (Backward Citations)
US2478889A
Cited
US2665568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |